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Finding the Fourth Proportional to 1,178.51, 1,768.28 and 562.67

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Solution

The fourth proportional to 1,178.51, 1,768.28 and 562.67 is: 844.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.51 : 1,768.28 = 562.67 : x
  2. Step 2: Convert to fraction form
    1,178.51/1,768.28 = 562.67/x
  3. Step 3: Cross multiply
    1,178.51x = 1,768.28 × 562.67
  4. Step 4: Simplify right side
    1,178.51x = 994,946.45
  5. Step 5: Solve for x
    x = 994,946.45/1,178.51
  6. Step 6: Final answer
    x = 844.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.